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Mar 28, 2024 · First online: June 2021. LUMI, based in Finland, is Europe's most powerful supercomputer and the fifth-fastest in the world. It uses 100% renewable hydroelectric energy, according to European ...
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- Overview
- Building a network
- Types of networks
- Networking protocols
The Internet is the world's largest computer network. Let's break that down:
A computer network is any group of interconnected computing devices capable of sending or receiving data. A computing device isn't just a computer—it's any device that can run a program, such as a tablet, phone, or smart sensor.
The simplest computer network is two devices:
A network like that only has to worry about a few things, like how to physically connect the two devices and how to send data over the physical connection in a format they both understand.
Let's add one more device:
Now there's additional complexity. How can each device know whether incoming data is meant for them or for their neighbor? This simple network will need an addressing scheme.
Let's jump to six devices. There are actually many ways we can connect six devices together in a computer network:
A diagram of 5 different network topologies for networks that each have 6 computing devices.
We use different terms to refer to networks based on their size and characteristics. Let's touch on a few of them here.
The most common type of network is the Local area network (LAN), a network that covers a limited area like a house or school.
The largest type of network is a Wide Area Network (WAN), a network that extends over a large geographic area and is composed of many, many LANs. Oftentimes, the networks in a WAN can only be connected by leasing telecommunications lines from different companies, since no single company owns all the infrastructure across the wide geographic area.
Another type of network is the Data Center Network (DCN), a network used in data centers where data must be exchanged with very little delay.
your understanding
Based on those descriptions, what type of network is the Internet?
Whenever computing devices are connected together in a network, they need protocols to communicate with each other.
If the devices want to communicate over the Internet, they must use the Internet networking protocols. There are many networks that aren't connected to the Internet that also use the Internet protocols, due to how well designed they are for networking.
However, there are networks that use other protocols that are more suited for their task. Data center networks often opt to use networking protocols that take advantage of the incredibly closely knit architecture of the data center. That enables data centers to more efficiently run intensive algorithms, such as training a deep learning network.
As we go forward in this unit, we will focus specifically on the Internet protocols that power the majority of computer networks. In the future, networks might be using protocols that haven't even been invented yet. Fortunately, the concepts underlying the Internet protocols are relevant to all networked systems.
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[Where is it?]
Dec 5, 2023 · The Internet is the largest computer network. It is composed of thousands of smaller networks and connects billions of devices worldwide, handling the majority of data communication that occurs on a daily basis. The largest private network is the NIPRNet, owned by the U.S. Department of Defense for distribution of communications.
Jun 11, 2023 · The Internet stands as the world’s largest computer network, connecting devices and individuals across the globe. Its vastness and impact on societies worldwide make it an indispensable tool for modern life.
Since June 2022, the United States' Frontier is the most powerful supercomputer on TOP500, reaching 1102 petaFlops (1.102 exaFlops) on the LINPACK benchmarks. [2] . As of 2018, the United States has by far the highest share of total computing power on the list (nearly 50%). [3] .
Jan 21, 2022 · Supercomputer Fugakuwas completed in March 2021, and is officially the world’s most powerful supercomputer. It’s used for various applications, including weather simulations and innovative drug discovery. Sunway Taihulightis officially China’s top supercomputer and fourth most powerful in the world.
